If you find that your browser has become display the annoying Chk.commentsfitters.com pop-up advertisements then it is a sign that your personal computer is infected with harmful software from the adware family. The ‘ad-supported’ software (also known as adware) is a form of unwanted software that can show a large count of pop-up advertisements without a user’s permission. Moreover, it can redirect the web-browser on malicious and misleading sites. Also, if you seeing that the Chrome, Firefox, Edge and Microsoft Internet Explorer tries to load an unknown web-site, when you try to open a long-known web page, then you do not need to wait! Press the stop button in web browser’s address bar. You need to follow the step by step tutorial below and clean your system from adware as quickly as possible. It’ll allow you to delete reroute to Chk.commentsfitters.com advertisements and any annoying ad sites.

The adware may insert a ton of ads directly to the pages that you visit, creating a sense that the advertising links has been added by the creators of the web-site. Moreover, a legal advertising links may be replaced on the fake advertisements, that will offer to download and install various unnecessary and harmful software. Moreover, the ‘ad supported’ software has the ability to collect a ton of personal information about you (your ip address, what is a web page you are viewing now, what you are looking for on the Net, which links you are clicking), which can later transfer to third parties.

Most often, the ‘ad supported’ software affects the most common web-browsers like the Chrome, Firefox, MS Edge and Internet Explorer. But such the harmful software as well may infect another web browsers by changing its shortcuts (adding an argument like ‘http://site.address’ into Target field of a browser’s shortcut). So every time you launch the web-browser, it’ll reroute to the undesired Chk.commentsfitters.com site. Even if you setup a new homepage, an unwanted web site will be the first thing you see when you start the Mozilla Firefox, Chrome, Internet Explorer and Edge.

We suggest to delete the adware which redirects your browser to intrusive Chk.commentsfitters.com web page, as soon as you found this problem, as it can direct you to web-resources which may load other harmful software on your PC.

How to remove Chk.commentsfitters.com pop-up ads

In the step by step guidance below, we will try to cover the Google Chrome, Mozilla Firefox, Internet Explorer and MS Edge and provide general help to remove Chk.commentsfitters.com pop-up advertisements. You may find some minor differences in your Microsoft Windows install. No matter, you should be okay if you follow the steps outlined below: delete all suspicious and unknown applications, reset browsers settings, fix browsers shortcuts, remove harmful scheduled tasks, use free malware removal utilities. Read this manual carefully, bookmark or print it, because you may need to exit your web-browser or restart your computer.

How to remove Chk.commentsfitters.com pop-up ads without any software

The useful removal tutorial for the Chk.commentsfitters.com redirect. The detailed procedure can be followed by anyone as it really does take you step-by-step. If you follow this process to remove Chk.commentsfitters.com pop ups let us know how you managed by sending us your comments please.

Uninstall ‘ad supported’ software through the MS Windows Control Panel

First method for manual ‘ad supported’ software removal is to go into the MS Windows “Control Panel”, then “Uninstall a program” console. Take a look at the list of programs on your machine and see if there are any suspicious and unknown applications. If you see any, you need to remove them. Of course, before doing so, you can do an Web search to find details on the program. If it is a potentially unwanted program, adware or malware, you will likely find information that says so.

Windows 8, 8.1, 10

Windows XP, Vista, 7

First, click “Start” and select “Control Panel”.

It will display the Windows Control Panel as on the image below.

Next, click “Uninstall a program”
It will open a list of all applications installed on your system. Scroll through the all list, and uninstall any suspicious and unknown programs. To quickly find the latest installed applications, we recommend sort applications by date in the Control panel.

Clean up the internet browsers shortcuts that have been hijacked by adware

Unfortunately, the ad-supported software can also hijack Windows shortcuts (mostly, your web-browsers shortcuts), so that the Chk.commentsfitters.com ad site will be opened when you start the Mozilla Firefox, Google Chrome, Internet Explorer and MS Edge or another web-browser.

Click the right mouse button to a desktop shortcut which you use to launch your internet browser. Next, select the “Properties” option. Important: necessary to click on the desktop shortcut for the internet browser that is re-directed to the Chk.commentsfitters.com or other intrusive site.

Further, necessary to look at the text that is written in the “Target” field. The adware can change the contents of this field, which describes the file to be start when you open your browser. Depending on the web browser you are using, there should be:

Google Chrome: chrome.exe

Opera: opera.exe

Firefox: firefox.exe

Internet Explorer: iexplore.exe

If you are seeing an unknown text similar to “http://site.addres” which has been added here, then you should remove it, as displayed on the screen below.

Next, click the “OK” button to save the changes. Now, when you start the web browser from this desktop shortcut, it does not occur automatically reroute on the Chk.commentsfitters.com site or any other annoying web-pages. Once the step is finished, we recommend to go to the next step.

Remove unwanted Scheduled Tasks

Once installed, the adware can add a task in to the Windows Task Scheduler Library. Due to this, every time when you start your personal computer, it will show Chk.commentsfitters.com intrusive web page. So, you need to check the Task Scheduler Library and delete all malicious tasks that have been created by malicious software.

Press Windows and R keys on your keyboard simultaneously. It will show a dialog box which titled with Run. In the text field, type “taskschd.msc” (without the quotes) and press OK. Task Scheduler window opens. In the left-hand side, click “Task Scheduler Library”, as displayed below.

Task scheduler, list of tasks

In the middle part you will see a list of installed tasks. Select the first task, its properties will be show just below automatically. Next, click the Actions tab. Necessary to look at the text which is written under Details. Found something like “explorer.exe http://site.address” or “chrome.exe http://site.address” or “firefox.exe http://site.address”, then you need get rid of this task. If you are not sure that executes the task, then google it. If it is a component of the adware, then this task also should be removed.

Further click on it with the right mouse button and select Delete as displayed on the image below.

Task scheduler, delete a task

Repeat this step, if you have found a few tasks that have been created by unwanted applications. Once is finished, close the Task Scheduler window.

Remove Chk.commentsfitters.com popup advertisements from Chrome

Run the Reset web browser tool of the Chrome to reset all its settings such as new tab, home page and search provider by default to original defaults. This is a very useful tool to use, in the case of web-browser redirects to unwanted ad web sites such as Chk.commentsfitters.com.

First run the Chrome and click Menu button (small button in the form of three horizontal stripes).

It will open the Google Chrome main menu. Select “Settings” option.

You will see the Google Chrome’s settings page. Scroll down and click “Show advanced settings” link.

Scroll down again and press the “Reset settings” button.

The Google Chrome will show the reset profile settings page as on the image above.

Next press the “Reset” button.

Once this process is finished, your internet browser’s startpage, new tab page and default search engine will be restored to their original defaults.

Remove Chk.commentsfitters.com pop-up ads from Internet Explorer

By resetting Internet Explorer web-browser you restore your browser settings to its default state. This is first when troubleshooting problems that might have been caused by adware which developed to redirect your web browser to various ad sites like Chk.commentsfitters.com.

First, start the Internet Explorer. Next, press the button in the form of gear (). It will open the Tools drop-down menu, click the “Internet Options” as displayed in the figure below.

In the “Internet Options” window click on the Advanced tab, then press the Reset button. The IE will open the “Reset Internet Explorer settings” window as shown on the screen below. Select the “Delete personal settings” check box, then press “Reset” button.

You will now need to reboot your PC system for the changes to take effect.

Get rid of Chk.commentsfitters.com pop up advertisements from Firefox

The Firefox reset will keep your personal information like bookmarks, passwords, web form auto-fill data, recover preferences and security settings, get rid of redirections to annoying Chk.commentsfitters.com site and ad-supported software.

First, run the FF. Next, press the button in the form of three horizontal stripes (). It will open the drop-down menu. Next, press the Help button ().

In the Help menu click the “Troubleshooting Information”. In the upper-right corner of the “Troubleshooting Information” page click on “Refresh Firefox” button as on the image below.

Confirm your action, press the “Refresh Firefox”.

Scan your system and get rid of Chk.commentsfitters.com pop up advertisements with free utilities

Manual removal tutorial does not always allow to completely delete the adware, as it is not easy to identify and remove components of adware and all malicious files from hard disk. Therefore, it is recommended that you use malicious software removal tool to completely delete Chk.commentsfitters.com off your web-browser. Several free malicious software removal utilities are currently available that can be used against the ad supported software. The optimum method would be to run Zemana Anti-malware, Malwarebytes Free and AdwCleaner.

Use Zemana Anti-malware to remove Chk.commentsfitters.com

You can remove Chk.commentsfitters.com popup advertisements automatically with a help of Zemana Anti-malware. We recommend this malware removal utility because it can easily delete hijackers, PUPs, ‘ad supported’ software that redirects your internet browser to Chk.commentsfitters.com site with all their components such as folders, files and registry entries.

Download Zemana from the following link. Save it on your Microsoft Windows desktop or in any other place.

After downloading is finished, close all applications and windows on your machine. Open a directory in which you saved it. Double-click on the icon that’s named Zemana.AntiMalware.Setup like below.

When the setup begins, you will see the “Setup wizard” that will allow you install Zemana Free on your system.

Once installation is done, you will see window as displayed in the figure below.

Now press the “Scan” button .Zemana program will scan through the whole PC system for the ‘ad supported’ software that causes unwanted Chk.commentsfitters.com pop-ups. A scan can take anywhere from 10 to 30 minutes, depending on the number of files on your machine and the speed of your computer.

As the scanning ends, you may check all items detected on your machine. In order to remove all threats, simply press “Next” button.

The Zemana Anti Malware (ZAM) will remove adware that cause unwanted Chk.commentsfitters.com advertisements to appear and move items to the program’s quarantine.

Run Malwarebytes to remove Chk.commentsfitters.com redirect

We suggest using the Malwarebytes Free. You may download and install Malwarebytes to find adware and thereby get rid of Chk.commentsfitters.com pop up ads from your internet browsers. When installed and updated, the free malware remover will automatically check and detect all threats exist on the PC.

Download MalwareBytes Anti Malware from the following link. Save it on your Desktop.

When downloading is finished, close all programs and windows on your system. Open a directory in which you saved it. Double-click on the icon that’s called mb3-setup as displayed in the following example.

When the installation begins, you will see the “Setup wizard” which will help you install Malwarebytes on your system.

Once setup is complete, you will see window as displayed on the screen below.

Now click the “Scan Now” button for checking your system for the adware that causes web browsers to show intrusive Chk.commentsfitters.com pop up ads. This task can take quite a while, so please be patient. While the MalwareBytes AntiMalware (MBAM) tool is checking, you may see number of objects it has identified as being infected by malware.

After MalwareBytes completes the scan, MalwareBytes AntiMalware will display a scan report. Review the report and then press “Quarantine Selected” button.

The Malwarebytes will now delete ad-supported software that causes a lot of annoying Chk.commentsfitters.com pop ups and add threats to the Quarantine. Once finished, you may be prompted to restart your computer.

The following video explains steps on how to remove browser hijacker, ad supported software and other malicious software with MalwareBytes Free.

Run AdwCleaner to get rid of Chk.commentsfitters.com pop ups

The AdwCleaner tool is free and easy to use. It can scan and delete malware, potentially unwanted software and ad-supported software in Google Chrome, FF, MS Edge and Microsoft Internet Explorer web-browsers and thereby get rid of all unwanted Chk.commentsfitters.com popup advertisements. AdwCleaner is powerful enough to find and delete malicious registry entries and files that are hidden on the system.

Download AdwCleaner by clicking on the link below and save it to your Desktop.

When the downloading process is done, double click the AdwCleaner icon. Once this utility is started, click “Scan” button .AdwCleaner application will scan through the whole system for the adware that causes multiple intrusive advertisements and pop ups. A scan may take anywhere from 10 to 30 minutes, depending on the number of files on your PC and the speed of your machine. While the AdwCleaner tool is scanning, you may see how many objects it has identified as being infected by malware.

When AdwCleaner has completed scanning your PC, you can check all items detected on your system. In order to remove all threats, simply click “Clean” button. It will open a prompt, press “OK”.

These few simple steps are shown in detail in the following video guide.

Use AdBlocker to stop Chk.commentsfitters.com and stay safe online

If you browse the Internet, you cannot avoid malicious advertising. But you can protect your internet browser against it. Download and use an ad blocking program. AdGuard is an ad-blocker which can filter out a large count of of the malicious advertising, blocking dynamic scripts from loading harmful content.

Download AdGuard program by clicking on the following link. Save it on your Windows desktop.

Once downloading is finished, start the downloaded file. You will see the “Setup Wizard” program window. Follow the prompts.

Once the installation is complete, press “Skip” to close the setup application and use the default settings, or click “Get Started” to see an quick tutorial that will assist you get to know AdGuard better.

In most cases, the default settings are enough and you don’t need to change anything. Each time, when you start your machine, AdGuard will launch automatically and block popup advertisements, web-pages such Chk.commentsfitters.com, as well as other harmful or misleading web sites. For an overview of all the features of the application, or to change its settings you can simply double-click on the icon named AdGuard, that is located on your desktop.

How did Chk.commentsfitters.com pop up ads get on your machine

These days certain freeware creators bundle optional software which could be PUPs like this ‘ad supported’ software, with a view to making some money. These are not free software as install an unwanted software on to your Windows computer. So whenever you install a new free program that downloaded from the Internet, be very careful during installation. Carefully read the EULA (a text with I ACCEPT/I DECLINE button), choose custom or manual install mode, uncheck all third-party applications.

Finish words

After completing the few simple steps outlined above, your computer should be clean from this ad supported software and other malware. The Chrome, IE, FF and Edge will no longer open undesired Chk.commentsfitters.com site when you browse the Web. Unfortunately, if the tutorial does not help you, then you have caught a new adware, and then the best way – ask for help.

Please start a new thread by using the “New Topic” button in the Spyware Removal forum. When posting your HJT log, try to give us some details about your problems, so we can try to help you more accurately. Wait for one of our trained “Security Team” or Site Administrator to provide you with knowledgeable assistance tailored to your problem with the unwanted Chk.commentsfitters.com pop-up ads.

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If you’re seeing unwanted pop-ups or ads, browser extensions or toolbars in your web-browser, you might have an adware, malware or spyware installed on your computer. Here are some steps you can take to remove unwanted software. Or ask for help here.